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dc.creatorLim, Siew Yee
dc.creatorLaw, Cheryl Suwen
dc.creatorLiu, Lina
dc.creatorMarković, Marijana
dc.creatorAbell, Andrew D.
dc.creatorSantos, Abel
dc.date.accessioned2019-07-09T11:59:27Z
dc.date.available2020-05-18
dc.date.issued2019
dc.identifier.issn2044-4753
dc.identifier.issn2044-4761
dc.identifier.urihttp://cer.ihtm.bg.ac.rs/handle/123456789/3008
dc.description.abstractThis study explores the potential of gold-coated titania-functionalized nanoporous anodic alumina distributed Bragg reflectors (Au-TiO2-NAA-DBRs) as platforms to enhance photocatalytic reactions by integrating “slow photons” and surface plasmon resonance (SPR). The photocatalytic degradation rate of methylene blue – a model organic compound with a well-defined absorption band in the visible spectral region – by these composite photonic crystals (PCs) upon visible-NIR light irradiation is used as an indicator to identify coupling effects between the “slow photon” effect and SPR. Our study demonstrates that the photocatalytic enhancement in Au-TiO2-NAA-DBRs is strongly associated with “slow photon” effect, while the contribution of SPR to the overall photocatalytic enhancement is weak due to the localized generation of surface plasmons on the top surface of the composite PC structure. Photocatalytic enhancement is optimal when the characteristic photonic stopband of these PCs partially overlaps with the absorption band of methylene blue, which results in edges being positioned away from the absorption maximum of the organic dye. The overall photocatalytic degradation for methylene blue is also correlated to the type of noble metal coating and the geometric features of the PC structures. These results establish a rationale for further development of noble metal-coated NAA-based hybrid plasmonic–photonic crystal photocatalyst platforms to optimally integrate “slow photons” and SPR for enhancing the efficiency of photocatalytic reactions and other light harvesting applications.
dc.publisherRoyal Society of Chemistry (RSC)en
dc.relationAustralian Research Council (ARC) - CE140100003
dc.relationSchool of Chemical Engineering, the University of Adelaide (UoA)
dc.relationInstitute for Photonics and Advanced Sensing (IPAS)
dc.relationARC Centre of Excellence for Nanoscale BioPhotonics (CNBP)
dc.rightsembargoedAccess
dc.sourceCatalysis Science & Technologyen
dc.titleIntegrating surface plasmon resonance and slow photon effects in nanoporous anodic alumina photonic crystals for photocatalysisen
dc.typearticleen
dc.rights.licenseBY-NC-ND
dcterms.abstractСантос, Aбел; Aбелл, Aндреw Д.; Марковиц, Маријана; Лиу, Лина; Лаw, Цхерyл Суwен; Лим, Сиеw Yее;
dc.rights.holderRoyal Society of Chemistry (RSC)
dc.citation.volume9
dc.citation.issue12
dc.citation.spage3158
dc.citation.epage3176
dc.citation.rankM21~
dc.description.otherRelated: [http://cer.ihtm.bg.ac.rs/handle/123456789/3007]
dc.description.otherThis is peer-reviewed version of the article: Law, L. Liu, M. Markovic, A. D. Abell and A. Santos, Catalysis Science & Technology, 2019, 9, 12, 3158-3176 [https://dx.doi.org/10.1039/C9CY00627C]
dc.identifier.doi10.1039/C9CY00627C
dc.identifier.fulltexthttp://cer.ihtm.bg.ac.rs/bitstream/id/7432/1_0907_10.1039_C9CY00627C.pdf
dc.identifier.scopus2-s2.0-85067701454
dc.identifier.wos000471908600012
dc.type.versionacceptedVersion


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